Sentences with phrase «organic compounds from»

Oil and gas standards: In April 2012, U.S. EPA finalized air pollution standards for the oil and gas industry that would capture up to 95 % of volatile organic compounds from new hydraulically fractured wells each year and in the process also reduce methane emissions.

Healthfulness of an interior environment; IAQ is affected by such factors as moisture and mold, emissions of volatile organic compounds from paints and finishes, formaldehyde emissions from cabinets, and ventilation effectiveness.

Sea salt comes from sea spray over the oceans, dust from dry desert areas, black carbon from burning of forests and fossil fuels, sulphates derive from ocean plankton and burning coal, nitrates derive from fertiliser use, car exhausts and lightning, and secondary organics come from the stew of volatile organic compounds from industrial and natural sources alike.

It seems to have antimicrobial properties too: Volatile organic compounds from Centaurium erythraea Rafn (Croatia) and the antimicrobial potential of its essential oil.

Researchers in the US have developed an optimized solid - phase microextraction method for extracting volatile organic compounds from cells infected with viruses, as a way of diagnosing viral diseases.

Eventually, a stable rocky crust may have developed between Years 0.2 and 0.4 billion (see J. Bret Bennington's discussion of recycled zircons (crystals of zirconium silicate) from the rocks of western Australia in the Hadean Eon and the January 11, 2001 announcement of zircons found north of Perth that appear to be 4.4 billion years old), covered and surrounded by soupy water that was already rich with organic compounds from interstellar space.

These efforts to produce simple organic compounds from simple reagents heralded the dawn of prebiotic organic chemistry.

We still need to do more work to understand what factors may play an important role in protecting organic compounds from these blast impacts.

In August, the EPA issued rules to limit air pollution by volatile organic compounds from «fracking» which should, as a by - product, also reduce emissions of methane.

In one, emissions of nitrogen oxides and volatile organic compounds from human activities would continue at current levels through 2050.

Frost and his colleagues developed a method of producing so - called «quinoid» organic compounds from the naturally occurring sugar d - glucose.

The findings also call into question other suggestions for using titanium dioxide for environmental remediation — for example, to remove odor - causing organic compounds from emissions produced by confined livestock feeding operations.

The team also reports discovering organic compounds from the mummy that seem to be by - products of protein decay.

Emission of volatile organic compounds from petunia flowers is facilitated by an ABC transporter.

Higher temperatures can also increase the emissions of organic compounds from trees, which can then react in the atmosphere to form ozone and particulate matter.

In the laboratory, researchers extracted organic compounds from the pre-Harvey dust and post-Harvey soil samples and analyzed them using gas chromatography.

Hayes and his colleagues looked at organic compounds from sediments formed between 1.8 billion and 550 million years ago, and found that simple hydrocarbons from the sediments contained more carbon - 13 than more complex organic molecules.

The city authorities in Vienna hope this will reduce the emissions of volatile organic compounds from vehicles from 60 to 45 tonnes a day.

In addition, comets and meteorites may have delivered organic compounds from space.

All of these scientific hypotheses boil down to first there was an planetary mass covered with water and providing the correct conditions for chemical reactions to create a simple organic compound from which life was formed.

Not exact matches

Soy oil is generally separated from flaked soybeans — leaving defatted meal that's ground into flour — using a chemical called hexane, one of the volatile organic compounds that constitutes natural gas, crude oil and gasoline.

Wiśniewska, MSc Katarzyna; Rembiałkowska, prof. Ewa; Hallmann, dr Ewelina; Rusaczonek, MSc Anna; Lueck, dr Lorna and Leifert, prof. Carlo (2008) The antioxidant compounds in rat experimental diets based on plant materials from organic, low - input and conventional agricultural systems.

From a dietary perspective, rapeseed oil has a significant flaw: undesirable amounts of erucic acid and glucosinolates (organic compounds).

Globally, over 220 million people suffer from food allergies and most countries report an increase in incidence.26 It is predicted that by 2050 the number of patients affected by allergic diseases in Australia will increase by 70 % to 7.7 million.27 By 2021, the markets for naturally healthy (US$ 291 billion), food intolerance (US$ 42 billion) and organic products (US$ 45 billion) are expected to have grown at up to 4.5 % compound annual growth rate (CAGR).28

Inputs into an organic production system are generally prohibited if synthetically compounded — defined by the ACO Standard as a process which chemically changes a material derived from plant, animal or mineral resources, with the exception of microbiological processes.

PrebioSure is based on several years of research and development of a proprietary enzymatic extraction of biologically active compounds from non-GMO and organic food grade wheat germ, which is also gluten - free, gliadin - free, and fructon - free.

One case is against Abbott Laboratories alleging its Similac Advance organic infant formula contains 26 (more than half) ingredients not allowed in organic products; specifically: «irradiated substances, synthetic compounds, or produced from hazardous substances.»

In a new paper she studies dimethyl sulfide and chloromethane, compounds that result from the breakdown of organic material, as promising targets.

To try to develop a more sensitive probe for isolating individual peptides — short strands of amino acids — from a pool of similar molecules, a team led by chemist Clark Still of Columbia University 4 years ago synthesized small organic compounds that selectively fish out peptides dissolved in chloroform.

Though all my work required the making of new molecules, individual projects ranged from designing organic compounds that control the reactivity of metal ions to generating conductive polymers for lithium - ion batteries.

From a human health and environmental perspective, it is therefore important to reduce the indoor and outdoor levels of these volatile organic compounds.

The irony is that we now know such compounds litter the solar system, present everywhere from Saturn's moon Titan to common meteorites; organics are probably present even on Mars's little moons, Phobos and Deimos.

Because these LEDs get their lighting from organic compounds that glow in response to electric current, they can be thinner, lighter and more flexible than LCDs.

In the atmosphere today, particle formation is dominated almost everywhere by mechanisms where at least three chemical components must come together: apart from the two basic substances, i.e. sulphuric acid and water, these are either ammonia or specific organic compounds such as oxidation products from terpenes.

The new study, also published in the Feb. 16 Science, focused on volatile organic compounds, or VOCs, that are derived from petroleum.

«The deposition of compounds such as sugars and organic acids from living roots can increase the activity of bacteria and fungi, and it's this increase in activity that accelerates the decomposition of carbon in the soil, leading to higher CO2 emissions,» Sulman said.

Evidently, earthworms change the forest soils from a fungal to a bacterial - dominated system, which speeds up the conversion of leaf detritus to mineral compounds and thereby potentially robs plants of organic nutrients.

He was an organic chemistry professor at the Federal Institute of Technology in Zurich, Switzerland, from 1942 to 1976, where he carried out research on alkaloids, antibiotics, enzymes, and other organic compounds.

In a new study published in the Proceedings of the National Academy of Sciences (PNAS), researchers from Innsbruck, Austria, present the world's first chemical fingerprint of urban emission sources of volatile organic compounds (VOCs).

Biochemist Lars Thelander at the announcement from the Royal Swedish Academy of Sciences: «Palladium - catalyzed cross-coupling has made it possible to synthesize carbon based molecules, for example, new medicines, agricultural chemicals and organic compounds used in the electronics industry.»

The air we breathe is chock - full of organic compounds, tiny liquid or solid particles that come from hundreds of sources including trees, volcanoes, cars, trucks and wood fires.

When converting carbon dioxide from the atmosphere into a sugar, plants use an organic catalyst called an enzyme; the researchers used a metal compound called tungsten diselenide, which they fashioned into nanosized flakes to maximize the surface area and to expose its reactive edges.

The team from York has previously worked on a new transgenic grass species that can neutralize and eradicate RDX, an organic compound, which along with TNT, forms the base for many common military explosives.

The explosive organic compound pentaerythritol tetranitrate (PETN) might one day allow pregnant women to protect their daughters from developing high blood pressure before they're born, according to an animal study published in the American Heart Association's journal Hypertension.

Much of this haze is formed from volatile organic compounds, or VOCs, and fine particulate matter from tailpipe emissions.

Cyanobacteria, which still exist in a similar form today, probably started using energy from sunlight to photosynthesize some of the carbon dioxide in the atmosphere into organic compounds.

Attendees at the astrobiology meeting in Arizona showcased an assortment of high - tech devices for next - generation exploration, ranging from microfluidic «life analyzers» and integrated nucleic acid extractors for studying «Martian metagenomics» to exquisitely sensitive, miniaturized organic chemistry labs for spotting tantalizing carbon compounds and minerals at microscopic scales.

This taste of carbon is intriguing, but it is a far cry from recent feverish speculation that the rover had found definitive evidence for organic compounds on Mars.

Ultimately, that methane is derived from bigger and more complex organic compounds in the buried sediment.

When inorganic mercury (whether from industry or nature) gets into wet soil or a waterway, sulfate - reducing bacteria begin incorporating it into an organic and far more absorbable compound called methylmercury.